ETHYLENE OXIDE PRODUCTION CATALYST Russian patent published in 2007 - IPC B01J37/02 B01J23/50 B01J23/66 B01J21/04 C07D301/10

Abstract RU 2311958 C2

FIELD: industrial organic synthesis catalysts.

SUBSTANCE: invention relates to a method of preparing ethylene oxide production catalyst containing silver deposited on alumina carrier originally having sodium and silicate ions on its surface. Carrier is preliminarily treated with aqueous solution of lithium salt at temperature below 100°C, after which at least 25% sodium ions are removed and replaced with up to 10 mln^-1 lithium ions. Carrier is dried and then silver and promoters are precipitated on the pretreated and dried carrier.

EFFECT: achieved stability of catalyst.

7 cl, 11 tbl, 17 ex

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RU 2 311 958 C2

Authors

Rizkala Nabil

Bornn Ehrrol

Tsulauf Charl'Z U.

Dates

2007-12-10—Published

2003-04-01—Filed